Avalanche Forecast
Issued: Dec 27th, 2013 7:23AM
The alpine rating is Storm Slabs and Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Poor - Due to the number of field observations
Weather Forecast
Saturday: Cloudy with flurries or periods of snow developing later in the day â 5-10 cm. The freezing level is at valley bottom and winds are light to moderate from the west-southwest. Sunday: Mainly cloudy with a chance of flurries. The freezing level is near valley bottom but there is a chance of an above freezing layer near 1500 m. Winds are light from the W-SW. Monday: Periods of snow. The freezing level is near valley bottom and winds are light to moderate from the SW.
Avalanche Summary
No new avalanches have been reported, but observations are very limited. Areas with heavier recent snowfall likely experienced a natural avalanche cycle on Thursday. Rider triggering remains a concern in steeper terrain and wind loaded features, primarily at and above treeline.
Snowpack Summary
Storm snow totals in the region are around 40-50 cm, with moist or wet snow below treeline. Periods of moderate to strong W-SW winds were likely over the past couple days. Expect dense wind slabs in exposed lee terrain and cross-loaded features. Between 40 and 80 cm of snow sits on a crust that extends up to treeline and possibly beyond. This interface was "popping" under easy loads in snowpack tests a few days ago. A new surface rain crust will probably form at lower elevations as temperatures cool tonight. Deeper in the snow pack a layer of facets/surface hoar formed in early December can be found in the top 100cm in the Ashman. The mid and lower snowpack is still structurally weak and faceted. Depth hoar and an early season crust exist near the ground.
Problems
Storm Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Persistent Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 28th, 2013 2:00PM